Considering the situation described, it can be graphed by the first function.
Which graph models the situation?
Cities A, B and C are on a straight line.
- On the first hour, they leave town B to town C, moving farther from Town A, hence the distance is increasing on the first hour.
- On the second hour, they stop for lunch, meaning that the distance remains constant at the point it was at the end of the first hour.
Hence, the first graph is the correct one for this problem.
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